function Person(name,age) {
    this.name = name;
    this.age = age;
}
Person.prototype.speci = '人类';
let zhen = new Person('郑总',18);
console.log(zhen.speci);

const kong = {
    name:'孔子',
    hobbies :['读书','喝酒']
}
zhen.__proto__ = kong;
console.log(zhen.hobbies);